gistfile1.txt

# as a one liner, just to say I told you so:
tail -f $HOME/.config/pianobar/out | sed 's/\x1b\[2K/\n/g' | gawk -v HOME="$HOME" ' BEGIN { i=0; while((getline line<"blacklist") > 0) songs[line]; } { for(song in songs) { if ( $0 == song ) { print "Skipping "song; print "n" > HOME"/.config/pianobar/ctl2"; } } } '

# With whitespace to make it easier to read:

tail -f $HOME/.config/pianobar/out |\
	sed 's/\x1b\[2K/\n/g' |\
	gawk -v HOME="$HOME" '
	BEGIN{
		i=0
		while((getline line<"blacklist") > 0)
			songs[line];
	}
	{
		for(song in songs) {
			if ( $0 == song ){
				print "Skipping "song;
				print "n" > HOME"/.config/pianobar/ctl2";
			}
		}
	}'